Legal claims defining the scope of protection, as filed with the USPTO.
2. The method of claim 1, wherein the determining further comprises one or more of the following: performing an initial 3D scan of the object or volume of interest, acquiring one or more x-ray projection images of the object or volume of interest, or using a tracking system comprising one or more cameras or electromagnetic trackers to locate the metal.
3. The method of claim 1, wherein the source-detector orbit comprises a position and orientation of an x-ray source and a detector for projections to be acquired in the 3D x-ray imaging.
4. The method of claim 1, wherein the objective function is further based on one or more of: a range in a metric map along a rotation axis of a gantry, a standard deviation of a metric map along a rotation axis of a gantry, a maximum of the metric map along the rotation axis of the gantry, a sum of metric maps for a range of rotation angles of the gantry.
5. The method of claim 1, wherein the severity of metal artifacts is reduced compared to a circular path in a plane perpendicular to a long axis of the object.
6. The method of claim 1, wherein the scanning further comprises acquiring a plurality of x-ray projections along the source-detector orbit and forming a 3D image reconstruction of the object.
7. The method of claim 6, wherein the forming the 3D image reconstruction further comprises performing one or more 3D image reconstruction algorithms comprising 3D filtered backprojection, other analytical methods for 3D image reconstruction, model-based image reconstruction, deep-learning, or neural network reconstruction.
9. The 3-D x-ray imaging system of claim 8, wherein the determining further comprises one or more of the following: performing an initial 3D scan of the object or volume of interest, acquiring one or more x-ray projection images of the object or volume of interest, or using a tracking system comprising one or more cameras or electromagnetic trackers to locate the metal.
10. The 3-D x-ray imaging system of claim 8, wherein the source-detector orbit comprises a position and orientation of an x-ray source and a detector for projections to be acquired in 3D x-ray imaging.
11. The 3-D x-ray imaging system of claim 8, wherein the objective function is further based on one or more of: a range of a metric map along a rotation axis of a gantry, a standard deviation of a metric map along a rotation axis of a gantry, a maximum of the metric map along the rotation axis of the gantry, a sum of metric maps for a range of rotation angles of the gantry.
12. The 3-D x-ray imaging system of claim 8, wherein the severity of metal artifacts is reduced compared to a circular path in a plane perpendicular to a long axis of the object.
13. The 3-D x-ray imaging system of claim 8, wherein the scanning further comprises acquiring a plurality of x-ray projections along the source-detector orbit and forming a 3D image reconstruction of the object.
14. The 3-D x-ray imaging system of claim 13, wherein the forming the 3D image reconstruction further comprises performing one or more 3D image reconstruction algorithms comprising 3D filtered backprojection, other analytical methods for 3D image reconstruction, model-based image reconstruction, deep-learning, or neural network reconstruction.
16. The non-transitory computer readable medium of claim 15, wherein the determining further comprises one or more of the following: performing an initial 3D scan of the object or volume of interest, acquiring one or more x-ray projection images of the object or volume of interest, or using a tracking system comprising one or more cameras or electromagnetic trackers to locate the metal.
17. The non-transitory computer readable medium of claim 15, wherein the source-detector orbit comprises a position and orientation of an x-ray source and a detector for projections to be acquired in the 3D x-ray imaging.
18. The non-transitory computer readable medium of claim 15, wherein the objective function is further based on one or more of: a range in a metric map along a rotation axis of a gantry, a standard deviation of a metric map along a rotation axis of a gantry, a maximum of the metric map along the rotation axis of the gantry, a sum of metric maps for a range of rotation angles of the gantry.
19. The non-transitory computer readable medium of claim 15, wherein the severity of metal artifacts is reduced compared to a circular path in a plane perpendicular to a long axis of the object.
20. The non-transitory computer readable medium of claim 15, wherein the scanning further comprises acquiring a plurality of x-ray projections along the source-detector orbit and forming a 3D image reconstruction of the object.
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October 17, 2023
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